test: add unit tests for utils (#821)

Author: bengbengbalabalabeng

fesod-sheet/src/test/java/org/apache/fesod/sheet/util/BeanMapUtilsTest.java

@@ -0,0 +1,95 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.apache.fesod.sheet.util;
+
+import org.apache.fesod.shaded.cglib.beans.BeanMap;
+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.Test;
+
+/**
+ * Tests {@link BeanMapUtils}
+ */
+class BeanMapUtilsTest {
+
+    public static class TestUser {
+        private String name;
+        private int age;
+
+        public String getName() {
+            return name;
+        }
+
+        public void setName(String name) {
+            this.name = name;
+        }
+
+        public int getAge() {
+            return age;
+        }
+
+        public void setAge(int age) {
+            this.age = age;
+        }
+    }
+
+    @Test
+    void test_create_Functionality() {
+        TestUser user = new TestUser();
+        user.setName("Fesod");
+        user.setAge(18);
+
+        BeanMap beanMap = BeanMapUtils.create(user);
+
+        Assertions.assertNotNull(beanMap);
+        Assertions.assertEquals("Fesod", beanMap.get("name"));
+        Assertions.assertEquals(18, beanMap.get("age"));
+        beanMap.put("name", "Fesod");
+        Assertions.assertEquals("Fesod", user.getName());
+    }
+
+    @Test
+    void test_create_NamingPolicy() {
+        TestUser user = new TestUser();
+        BeanMap beanMap = BeanMapUtils.create(user);
+
+        String generatedClassName = beanMap.getClass().getName();
+
+        Assertions.assertTrue(generatedClassName.contains("ByFesodCGLIB"));
+    }
+
+    @Test
+    void test_NamingPolicy_tag() {
+        BeanMapUtils.FesodSheetNamingPolicy policy = BeanMapUtils.FesodSheetNamingPolicy.INSTANCE;
+
+        Assertions.assertDoesNotThrow(() -> {
+            java.lang.reflect.Method getTagMethod = policy.getClass().getDeclaredMethod("getTag");
+            getTagMethod.setAccessible(true);
+            String tag = (String) getTagMethod.invoke(policy);
+            Assertions.assertEquals("ByFesodCGLIB", tag);
+        });
+    }
+
+    @Test
+    void test_create_null() {
+        Assertions.assertThrows(NullPointerException.class, () -> {
+            BeanMapUtils.create(null);
+        });
+    }
+}